Actually, this is not the issue. The issue is BHO was adopted by an Indonesian and upon that adoption his US citizenship was no more. When he returned to the US...he should have become a naturalized citizen....which makes him ineligible to run for President. [In Indonesia you can’t have a dual citizenship...from what I understand.]
Read Berg’s Petition For Writ of Certiorari - it spells out clearly all of the issues.
That argument is invalid. If Zero was a natural born citizen no nation can strip him of it and he was not of age to renounce it. The Virginia court decision addressed this pretty convincingly.